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[China]
Trade Verify
Address: No.101 Shijing East Road, Tudian Town, Tongxiang, China
Contact name:Denny
NEW-ERA STEEL TUBE TECHNOLOGY CO.,LTD |
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Verified Suppliers
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Welded cold drawn steel round tubing,DOM steel tubing for Hydraulic and Pneumatic cylinders,
precision roller,rubber bush.
Size Range:
OD: 5.0-3290mm
WT:0.5-30mm
Length: max 12000mm
DOM(weld drawn-over-mandrel) Steel Tubing Characteristic:
Good concentricity
Good OD and ID tolerance
High Precision
Stable quality
Smooth Roughness
High Straightness
Production Processs:
Seamless tube and Cold Drawing or Cold Rolling Production
Steel Grade/Steel Material:
| Steel Grade | % by mass | ||||||
| Name | Number | C max | Si max | Mn max | P max | S max | Altot min |
| Rst34-2 | 1.0034 | 0.15 | 0.30 | 0.60 | 0.025 | 0.0215 | - |
| Rst37-2 | 1.0038 | 0.17 | 0.30 | 0.70 | 0.025 | 0.025 | - |
| St44-2 | 1.0044 | 0.21 | 0.30 | 1.10 | 0.025 | 0.025 | - |
| St52-3 | 1.0570 | 0.22 | 0.55 | 1.60 | 0.025 | 0.025 | 0.020 |
| a Elements not included in this table (but see footnote b) shall not
be intentionally added to the steel without the agreement of the
purchaser, except for elements which may be added for finishing the
cast. All appropriate measures shall be taken to prevent the
addition of undesirable elements from scrap or other materials used
in the steel making process. b Additions of Nb, Ti and V are permitted at the discretion of the manufacturer. The content of these elements shall be reported. | |||||||
Mechanical properties at the room temperature
| Steel Grade | Yield strengtha | Tensile strength | Elogation | |
| Name | Number | ReH min Mpa | Rm min Mpa | A min % |
| Rst34-2 | 1.0034 | 205 | 290 to 430 | 28 |
| Rst37-2 | 1.0038 | 235 | 340 to 480 | 25 |
| St44-2 | 1.0044 | 255 | 410 to 540 | 21 |
| St52-3 | 1.0570 | 355 | 490 to 630 | 22 |
| a For tubes with outside diameter ≤ 30 mm and wall thickness ≤ 3 mm,
the ReH minimum values are 10 MPa lower than the values given in this
table. NOTE: The steel grades defined in this part of EN 10305 have an intrinsic minimum transverse impact energy of 27 J at 0 °C. | ||||
